Solid-liquid phase transfer catalytic synthesis of α- amino acid via alkylation and nucleophilic addition of benzaldehyde imines
作者:Jiang Yaozhong、Zhou Changyou、Wu Shengde、Chen Daimo、Ma Youan、Liu Guilan
DOI:10.1016/s0040-4020(01)86041-5
日期:1988.1
A short, mild and efficient synthetic route of α-amino acid via alkylation, Michael addition and carbonyl addition as well as cycloaddition of aldimines derived from glycine and alanine esters with benzaldehyde under solid-liquid phase transfer catalytic condition has been studied. The key to solid-liquid phase transfer catalyzed reactions is the selection of a base for the various reactants. The yield
研究了在固-液相转移催化条件下,通过烷基化,迈克尔加成和羰基加成以及甘氨酸和丙氨酸酯衍生的亚胺与苯甲醛环加成,合成短而温和高效的α-氨基酸的路线。固液相转移催化反应的关键是为各种反应物选择碱。产量取决于所用的碱。讨论了使用KOH,K 2 CO 3和Na 2 CO 3获得的结果。研究了固液PTC苄基化反应的动力学,我们提出了一种可能的固液PTC机理作为界面自动催化程序。介绍了一些α-氨基酸合成的细节。